SUSCEPTIBILITY OF SOYBEAN CULTIVARS AND LINES TO PRATYLENCHUS-HEXINCISUS

  • 1 January 1982
    • journal article
    • research article
    • Vol. 14  (2) , 217-220
Abstract
Population increase of P. hexincisus on 41 soybean cultivars (maturity groups I-VI) and lines was tested under greenhouse conditions. After 3 mo., P. hexincisus was recovered from the roots of all plants tested. Final populations of P. hexincisus per pot were larger than the initial population in 13 cultivars. Pathogenicity of P. hexincisus on 5 soybean cultivars representing maturity groups (I-V) was demonstrated under greenhouse conditions. An inoculum of 5000 P. hexincisus/plant significantly decreased the root and shoot biomass of all 5 soybean cultivars after 3 mo.